Detection method and system for emission acoustic system probe of acoustic logging instrument

Abstract

The invention discloses a detection method and system for an emission acoustic system probe of an acoustic logging instrument, and the method comprises the steps: firstly, supplying power to a to-be-detected acoustic logging instrument, enabling an emission acoustic system of the to-be-detected acoustic logging instrument to be in a working state, and forming an acoustic signal in air after the emission probe is excited; converting the sound wave signal into an electric signal to obtain an acquisition waveform; comparing the acquired waveform with a standard waveform, and judging whether the sound system probe emitted by the to-be-detected sound wave detection instrument has a fault or not according to a comparison result; according to the invention, under the condition that a large silencing pool is not used and a sound system does not need to be disassembled, the detection method for the emission probe in an integrated transmitting acoustic system greatly reduces manpower, material resources and time cost, and further avoids secondary damage to the instrument emission sound system in the disassembling process is avoided, the method can be used as a preventive detection means, thehidden danger that the probe in the emission sound system is damaged is found in advance, the problem that the one-time success rate of well logging is reduced due to the fact that the damaged instrument is delivered to the site for use is solved, and mistaken time and rework of well logging construction operation are reduced.

Description

technical field [0001] The invention belongs to the field of geophysical well logging instruments, and relates to a detection method and system for an acoustic system probe emitted by an acoustic well logging instrument. Background technique [0002] At present, the inspection methods for the emission probe of acoustic logging equipment are mainly divided into two types: dismantling emission sound system inspection and complete emission sound system inspection; since the emission probe is soaked in high temperature resistant insulating pressure oil and sealed with a capsule, the emission After the probe is disassembled, the internal insulating and pressure-bearing oil has to be scrapped, and it needs to be refilled and sealed when it is reassembled, and the process of disassembly and assembly may cause damage to other parts of the sound system, so the inspection of the disassembled sound system The method requires high manpower, material resources and time costs, and is acco...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the object of the present invention is to provide a detection method and system for the emission acoustic system probe of the acoustic logging instrument, so as to solve the problem of high cost of the existing detection process of dismantling the emission acoustic system, The risk is high; while the inspection process of the integrated emission sound system is relatively difficult to operate, and it is impossible to effectively identify and judge the technical problems of damaged parts

Images